Mathematics · Soil Mechanics
In a falling head permeability test, the following parameters are recorded: area of standpipe a = 1 cm2, area of soil sample A = 50 cm2, length of sample L = 15 cm, initial head h1 = 100 cm, final head h2 = 25 cm, and time interval t = 200 s. Find the coefficient of permeability k (in cm/s). [Given: ln(4) ≈ 1.3863]
- 11.20 × 10-3
- 21.60 × 10-3
- 31.04 × 10-3✓
- 42.08 × 10-3
Correct answer
1.04 × 10-3
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